CN113172937A

CN113172937A - Method for processing corrugated case with easy-to-tear opening

Info

Publication number: CN113172937A
Application number: CN202110536261.5A
Authority: CN
Inventors: 庞井东; 刘涛; 尹聪慧
Original assignee: Tianjin Dingcai Packing Co ltd
Current assignee: Tianjin Dingcai Packing Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-07-27
Anticipated expiration: 2041-05-17
Also published as: CN113172937B

Abstract

The invention discloses a method for processing a corrugated case with an easily torn opening, which comprises the following steps: s1, half-penetrating and die-cutting the front face of the easy-to-tear opening of the facial tissue according to a front knife line, and half-penetrating the facial tissue; s2, corrugation pasting is carried out; and S3, performing half-through die cutting on the reverse side of the position where the facial tissue is easy to tear according to a reverse side knife line, cutting through the corrugated paper, and half-through the facial tissue, wherein the reverse side knife line is retracted inwards by a preset distance compared with the front side knife line. Aiming at the technical problems that the existing corrugated case is difficult to tear the easy-tear opening and poor in attractiveness after being opened, the invention provides the method for processing the easy-tear opening corrugated case, the corrugated case manufactured by the method can ensure that the product opening rate is 100%, the user experience is increased, and meanwhile, the attractiveness of the product is improved.

Description

Method for processing corrugated case with easy-to-tear opening

Technical Field

The invention relates to the technical field of packaging boxes, in particular to a method for processing a corrugated carton with an easily torn opening.

Background

The corrugated paper board is made into a corrugated paper box through die cutting, indentation, box nailing or box gluing. The corrugated case is a packaging product with the widest application, and the use amount is always the first of various packaging products. Comprises a calcium plastic corrugated case. For more than half a century, corrugated cartons gradually replace transport packaging containers such as wooden boxes and the like with excellent service performance and good processing performance, and become the leading force of transport packaging. It not only protects the goods, is convenient for storage and transportation, but also beautifies the goods and publicizes the goods. The corrugated case belongs to green environmental protection product, and it does benefit to the environmental protection, does benefit to the loading and unloading transportation.

However, the existing corrugated boxes have the following disadvantages:

1. the mouth is easily torn in the preparation of point-to-point formula serrated knife structure, and the clearance that mainly relies on the adjustment serrated knife adjusts easily tearing nature, and the clearance of serrated knife also needs to be adjusted when the material changes, tears the edge of mouthful after the use and can have a large amount of bumps, the outward appearance of direct influence product.

2. The easy-tearing opening is manufactured by using the splayed serrated knife structure, and can be torn in one direction only, and obvious serrated traces can be left after tearing.

3. Corrugated paper is thick, and easy tearing of easy tearing mouth is poor, can't guarantee easily to tear mouthful percentage of opening 100%, and easy tearing mouth edge has a large amount of bumps, cockscomb structure vestige after opening.

Disclosure of Invention

1. Technical problem to be solved by the invention

Aiming at the technical problems that the existing corrugated case is difficult to tear the easy-tear opening and poor in attractiveness after being opened, the invention provides the method for processing the easy-tear opening corrugated case, the corrugated case manufactured by the method can ensure that the product opening rate is 100%, the user experience is increased, and meanwhile, the attractiveness of the product is improved.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the invention is as follows:

a processing method of a corrugated case with an easy-tear opening comprises the following steps: s1, half-penetrating and die-cutting the front face of the easy-to-tear opening of the facial tissue according to a front knife line, and half-penetrating the facial tissue; s2, corrugation pasting is carried out; and S3, performing half-through die cutting on the reverse side of the position where the facial tissue is easy to tear according to a reverse side knife line, cutting through the corrugated paper, and half-through the facial tissue, wherein the reverse side knife line is retracted inwards by a preset distance compared with the front side knife line.

Optionally, the back side tool lines are indented towards the center by 5-8mm compared to the front side tool lines.

Optionally, the back side tool lines are indented towards the center by 6mm compared to the front side tool lines.

Optionally, the face paper has a half penetration depth of 0.15-0.25 mm.

Optionally, the face paper has a half penetration depth of 0.2 mm.

Optionally, the step S3 further includes die cutting the tissue paper at the easy tear opening according to a tear line, and simultaneously cutting through the corrugated paper and the tissue paper.

Optionally, the tear notch line is die cut by a serrated knife.

Optionally, all knife lines except the easy tear location cut through both the corrugated and tissue paper simultaneously.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) the corrugated case made by the processing method of the corrugated case with the easily torn opening solves the problems that an existing corrugated packaging structure produces convex points and sawtooth-shaped traces when the easily torn opening is torn, the attractiveness of a product is improved, meanwhile, the situation that the existing corrugated packaging structure is difficult to tear is avoided, the product opening rate is guaranteed to be 100%, and the user experience is improved.

Drawings

Fig. 1 is a schematic structural view of a corrugated case made of an easy-tear corrugated case according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a corrugated case made of an easy-tear corrugated case according to an embodiment of the present invention;

1. a corrugated box; 2. an easy-to-tear opening; 3. tearing paper; 4. a first edge; 5. a second edge.

Detailed Description

For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings 1-2.

With reference to fig. 1-2, the method for processing a corrugated carton with an easy-to-tear opening of the embodiment includes the following steps:

s1, half-penetrating and die-cutting the front face of the easy-to-tear opening of the facial tissue according to a front knife line, and half-penetrating the facial tissue; s2, carrying out corrugating, wherein in the laminating process, glue is uniformly coated on a single-sided corrugated board by using a glue roller, the glue is bonded with surface paper which is synchronously conveyed, then the surface paper is bonded with the corrugated board by using a pressing type conveying belt to form the corrugated board, the front surface of the surface paper is subjected to half-through die cutting at an easily-torn opening, so that the paper cannot be scattered, and the half-through glue of the paper cannot penetrate through the bottom layer of the surface paper to influence other parts; s3, die cutting the back side of the position of the easy-to-tear opening of the facial tissue in a half-through mode according to a back side knife line, cutting through the corrugated paper, and cutting through the facial tissue in a half-through mode to enable the middle layer of the facial tissue to be separated, wherein the back side knife line is retracted inwards for a preset distance compared with the front side knife line to form a tear strip with a certain width, and all knife lines except the position of the easy-to-tear opening simultaneously cut through the corrugated paper and the facial tissue, for example, the height of the knife line at the position is 23.8mm, and the height of a lead at the half-through position is 23.6 mm; the corrugated case manufactured in the above manner is shown in fig. 1-2, and includes a corrugated case 1, the corrugated case 1 is provided with at least one easy-to-tear opening 2 (an opening formed by reverse knife-line die cutting) and tear paper 3 embedded in the easy-to-tear opening 2 (step S3 half-through die cutting), the tear paper 3 is embedded in the easy-to-tear opening 2 to realize sealing, one side of the tear paper 3 is connected to the corrugated case 1 in a bendable manner (one side of the tear paper 3 is integrally formed with the corrugated case 1 and is cut off when in use), the edge of the tear paper 3 is connected to a first edge 4, a face paper layer is adhered to the outer surface of the tear paper 3, the edge of the face paper layer protrudes from the tear paper 3 to form the first edge 4, the edge of the easy-to-tear opening 2 is connected to a second edge 5, the first edge 4 and the second edge 5 are matched together to fix the tear paper 3, the first edge 4 and the second edge 5 are actually the same plane paper layer, and the middle part of the plane paper layer is separated to form the first edge 4 and the second edge 5 when in use.

Certainly, in other embodiments, the flute can be mounted first, and then the back half-through die cutting and the front half-through die cutting are performed (similar effect can be achieved equally), but the strength of the easy-to-tear opening made in this way is too poor, so that the package is easy to damage, and the exposed easy-to-tear opening after tearing is the corrugated medium paper, so that the appearance is poor, and the production efficiency is low, because the thickness difference between the surface paper and the corrugated paper is large, the manual carrying of the surface paper with the corrugated paper adhered thereon needs a large workload (the feeding speed and the blanking speed), and occupies more space, and the direct processing of the surface paper by the die-cutting machine also has a higher processing speed compared with the combination of the surface paper and the corrugated paper.

Specifically, the surface paper comprises a coating layer, a surface layer, a core layer, a bottom layer and a coating layer, and the surface paper penetrates through the coating layer and the surface layer to the core layer when being half-penetrated.

The corrugated case made by the processing method of the corrugated case with the easily torn opening solves the problems that an existing corrugated packaging structure produces convex points and sawtooth-shaped traces when the easily torn opening is torn, the attractiveness of a product is improved, meanwhile, the situation that the existing corrugated packaging structure is difficult to tear is avoided, the product opening rate is guaranteed to be 100%, and the user experience is improved.

As shown in fig. 2, the easy-tear opening is provided at the top of the corrugated box, so that the weight of the carton is not affected.

As an alternative of the invention, the back side knife line is retracted to the center by 5-8mm compared with the front side knife line, so that the tearing strip is not easy to break during tearing, and the actual test shows that the effect of 6mm is optimal.

As an alternative of the invention, the half penetration depth of the facial tissue is 0.15-0.25mm, too deep can cause the tearing strip to be easily broken to affect the appearance, too shallow can cause the tearing strip to be difficult to open when opened to affect the use, and the actual test shows that the effect of 0.2mm is the best.

As an alternative of the present invention, the step S3 further includes die cutting the paper at the easy tear opening according to a tear line, and cutting through the corrugated paper and the paper, and in use, pulling the tear paper through a tear opening (not shown) to open the easy tear opening.

As an alternative of the invention, the tear notch knife line is used for die cutting through a serrated knife, so that the edges of the tear paper and the tear notch which are formed by die cutting and located in the tear notch have certain connecting strength, and the tear paper and the tear notch do not fall off in the transportation process to influence the sealing performance of the corrugated case.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The processing method of the corrugated case with the easily torn opening is characterized by comprising the following steps of: the method comprises the following steps:

s1, half-penetrating and die-cutting the front face of the easy-to-tear opening of the facial tissue according to a front knife line, and half-penetrating the facial tissue;

s2, corrugation pasting is carried out;

and S3, performing half-through die cutting on the reverse side of the position where the facial tissue is easy to tear according to a reverse side knife line, cutting through the corrugated paper, and half-through the facial tissue, wherein the reverse side knife line is retracted inwards by a preset distance compared with the front side knife line.

2. The method for processing an easy-tear corrugated carton according to claim 1, wherein: the back side knife line is retracted 5-8mm to the center compared with the front side knife line.

3. The method for processing an easy-tear corrugated carton according to claim 2, wherein: and the back side knife line is retracted 6mm to the center compared with the front side knife line.

4. The method for processing an easy-tear corrugated carton according to claim 1, wherein: the half-penetration depth of the surface paper is 0.15-0.25 mm.

5. The method for processing an easy-tear corrugated carton according to claim 4, wherein: the half-penetration depth of the surface paper is 0.2 mm.

6. The method for processing an easy-tear corrugated carton according to claim 1, wherein: and the step S3 further comprises the step of die cutting according to a tear line at the position of the easy-tear opening of the facial tissue, and simultaneously cutting through the corrugated paper and the facial tissue.

7. The method for processing an easy-tear corrugated carton according to claim 6, wherein: and die cutting is carried out on the knife line of the tearing opening through a serrated knife.

8. The method for processing an easy-tear corrugated carton according to any one of claims 1 to 7, wherein: all knife lines except the easy-to-tear opening simultaneously cut through the corrugated paper and the facial tissue.